NEGATIVE PRESSURE WOUND THERAPY ARTICLE WITH FEATURES
An article, including a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site; wherein at least one of the interconnected polymeric strand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein at least one of the interconnected polymeric strands is non-linear; and a plurality of openings between adjacent polymeric strands; wherein the article is a negative pressure wound therapy article.
1 . An article, comprising:
a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site; wherein at least one of the interconnected polymeric strand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein at least one of the interconnected polymeric strands is non-linear; and
a plurality of openings between adjacent interconnected polymeric strands;
wherein the article is a negative pressure wound therapy article.
2 . The article of claim 1 , wherein at least one of the interconnected polymeric strands is linear.
3 . The article of claim 1 , wherein the network comprises alternating non-linear polymeric strands and linear polymeric strands.
4 . The article of claim 1 , wherein the non-linear polymeric strand has a sinusoidal curve.
5 . The article of claim 1 , wherein the tensile strength of the article parallel to x direction is greater than the tensile strength of the article parallel to y direction.
6 . The article of claim 1 , wherein the tensile strength of the article parallel to x direction is more than 2.23 Mpa.
7 . The article of claim 1 , wherein the polymeric strands comprises an elastomeric polymer.
8 . The article of claim 7 , wherein the elastomeric polymer is selected from polyolefins or polyurethanes.
9 . The article of claim 1 , wherein the features have a height of 100 μm to 1000 μm.
10 . The article of claim 1 , wherein the features have a width of 10 μm to 1000 μm.
11 . The article of claim 1 , wherein a ratio of the height to width of the features is no more than 1:1
12 . The article of claim 1 , wherein the density of features extending from the first surface is less than 1,000/square inch.
13 . The article of claim 1 , wherein aspect ratio of the openings is greater than 1:1.
14 . The article of claim 1 , wherein essentially all the interconnected polymeric strands are non-linear.
15 . A system, comprising:
the article of claim 1 ; and
a reduced pressure source fluidly connected to the opening of the article to deliver the reduced pressure through the opening, between the features, and to the tissue site.
16 . A method, comprising:
providing the article of claim 1 ; and
positioning the article on a wound.
17 . The method of claim 16 , further comprising coupling a reduced pressure source to the article.
18 . The method of claim 16 , further comprising applying a reduced pressure to the wound through the article.
19 . The method of claim 18 , wherein applying the reduced pressure to the wound comprises activating the reduced pressure source coupled to the article.
20 . The method of claim 16 , wherein positioning the article on the wound comprises placing the article over the wound with the features on the first